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Bidirectional PCS – The Smart Bridge Between Your Batteries and the Grid

Transform your energy storage system into a powerful, revenue-generating asset with EnerTech’s intelligent Bidirectional Power Conversion System. Seamlessly store, dispatch, and optimize energy flow for maximum efficiency and cost savings.

Parameter Specification
Power Rating 50 kW to 1000 kW (Modular Design)
Configuration Single Phase & Three Phase
DC Voltage Range 400V - 1000V DC (Configurable)
AC Voltage 230V Single Phase / 400V‒415V Three Phase
Frequency 50 Hz / 60 Hz (Auto-adjustable)
Conversion Efficiency Up to 98% (DC-AC) / 97% (AC-DC)
Round-Trip Efficiency 95%+ (Including battery losses)
Power Factor 0.8 Leading to 0.8 Lagging (Adjustable)
THD <3% (Linear load), <5% (Non-linear load)
Response Time <10ms
Switching Time <100ms (Grid-Connected to Off-Grid)
Charge/Discharge Transition <200ms at 90% rated power
Overload Capacity 110% continuous, 150% for 10 seconds
Operating Temperature -20°C to +55°C (Optional cooling)
Protection Rating IP21 / IP54 (Optional outdoor)
Communication RS485, Ethernet, 4G/Wi-Fi, MODBUS TCP/RTU
Battery Compatibility LFP, NMC, Lead-Acid, Flow Batteries

What is a Bidirectional PCS?

A Bidirectional Power Conversion System (PCS) is the intelligent heart of any Battery Energy Storage System (BESS). It’s a sophisticated power electronics device that enables two-way energy flow between your battery storage and the electrical grid or loads. Unlike conventional inverters that only convert DC to AC, a bidirectional PCS works both ways—charging batteries from AC sources (grid or generators) and discharging stored energy back to AC loads or the grid.

EnerTech’s Multi-Functional Bidirectional PCS is engineered to maximize the value of your energy storage investment. Whether you’re storing excess solar energy, performing peak shaving, providing grid services, or ensuring backup power, our PCS delivers intelligent, efficient, and reliable power conversion.

Why It Matters: In today’s dynamic energy landscape, simply storing energy isn’t enough. You need intelligent management—knowing when to charge, when to discharge, and how to optimize every watt. That’s exactly what our Bidirectional PCS delivers, making your BESS not just a backup system, but a strategic energy asset.

Seamless AC-DC-AC Conversion

Multi-Mode Operation Capability

50kW Power Module Based Design

Business Benefits & ROI

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Financial Performance Typical Commercial Installation (250kW PCS + 500kWh Battery)

Investment: • PCS System: ₹50-75 lakhs • Battery System: ₹1.5-2 crores • Installation & Engineering: ₹15-20 lakhs • Total Investment: ₹2.15-2.95 crores

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Annual Savings/Revenue:

• Peak demand reduction: ₹25-35 lakhs/year • TOU arbitrage: ₹15-20 lakhs/year • Grid services revenue: ₹5-10 lakhs/year (if applicable) • Total Annual Benefit: ₹45-65 lakhs/year

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ROI Timeline: 3-5 years Lifecycle Value (10-year system life):

• Total savings: ₹4.5-6.5 crores • Net benefit after investment: ₹1.55-3.55 crores • IRR: 20-35%

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Performance Metrics Efficiency Performance

• DC-AC efficiency: 98% at full load • AC-DC efficiency: 97% at full charge • Round-trip efficiency: 95%+ (system level) • Standby consumption: <1% of rated power

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Performance Metrics Efficiency Performance

• DC-AC efficiency: 98% at full load • AC-DC efficiency: 97% at full charge • Round-trip efficiency: 95%+ (system level) • Standby consumption: <1% of rated power

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Reliability Metrics

• MTBF: >100,000 hours • Design life: 15-20 years • Warranty: 5 years standard, 10 years optional • System availability: 99%+

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Fast charging

Lithium ion battery chargers are capable of charging batteries quickly, allowing for rapid turnaround times and minimal downtime.

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Customization

Many lithium ion battery chargers can be customized to meet specific customer requirements, such as output voltage, charging current, and charging time.

Core Benefits & USPs

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1. Maximize Energy Savings & ROI​

Peak Shaving & Demand Charge Reduction Automatically discharge batteries during peak demand hours to reduce expensive demand charges—often the largest component of commercial electricity bills. Our intelligent algorithms learn your consumption patterns and optimize discharge timing for maximum savings. Time-of-Use (TOU) Arbitrage Store energy when electricity rates are low (off-peak hours) and use or export it when rates are high (peak hours). The system automatically executes buy-low-sell-high strategies, creating a new revenue stream from your battery storage. Grid Export Revenue For grid-tied systems with net metering or feed-in tariffs, automatically export stored energy to the grid when prices are favorable. Our PCS handles all synchronization, power quality, and compliance requirements. Typical Savings: Commercial customers report 20-40% reduction in electricity bills and 3-5 year ROI on BESS investments with proper PCS optimization.

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Grid-Forming & Grid-Following Intelligence

Grid-Forming Capability Our PCS can create its own stable grid—essential for microgrids, off-grid installations, and black start situations. It establishes voltage and frequency references, allowing other generators and loads to synchronize to it. Grid-Following Mode When connected to utility grid, the PCS seamlessly follows grid parameters, providing ancillary services like: • Frequency Regulation: Inject/absorb power in milliseconds to stabilize grid frequency • Voltage Support: Provide reactive power compensation to maintain voltage quality • Low Voltage Ride-Through (LVRT): Stay connected during grid voltage sags • Anti-Islanding Protection: Automatic disconnection during grid failures for safety

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3. Ultra-Fast Response for Grid Services

Millisecond-Level Response Time With response times under 10ms, our PCS can provide critical grid services: • Primary Frequency Response (PFR): Immediate response to frequency deviations • Fast Frequency Response (FFR): Sub-second frequency stabilization • Spinning Reserve: Instant power injection when needed • Black Start Services: Restore grid after complete blackout These fast-response capabilities make your BESS valuable to grid operators, creating opportunities for additional revenue through ancillary service contracts.

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4. Intelligent Battery Management & Life Extension

Optimized Charging Algorithms • Prevents overcharging and deep discharging that damage batteries • Temperature-compensated charging for different ambient conditions • Multi-stage charging profiles (bulk, absorption, float, equalization) • Cell balancing support for lithium-ion battery systems Cycle Life Extension By intelligently managing charge/discharge cycles and avoiding stress conditions (high C-rates, extreme SOC states), our PCS can extend battery life by 20-30% compared to basic systems. Battery Health Monitoring • Real-time State of Charge (SOC) tracking • State of Health (SOH) estimation • Predictive maintenance alerts • Thermal management integration

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5. Multi-Source Energy Management

Renewable Integration Our PCS seamlessly integrates with: • Solar PV Systems: MPPT controllers or direct DC coupling • Wind Turbines: AC or DC coupled configurations • Fuel Cells: Hydrogen-to-power conversion • Diesel/Gas Generators: Hybrid operation for remote locations Intelligent Energy Routing The PCS automatically prioritizes energy sources based on: • Cost (fuel vs. grid electricity vs. stored energy) • Availability (renewable generation vs. grid vs. battery SOC) • Environmental impact (zero-emission sources first) • User-defined preferences and schedules

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6. Advanced Remote Monitoring & Control

• 4G/LTE: Cellular connectivity for remote locations • Wi-Fi: Local network integration • Ethernet: Wired connectivity for data centers and facilities • GPRS: Backup communication channel Comprehensive Mobile & Web Platform • Real-time dashboard with power flow visualization • Historical data analysis and trend reports • Programmable schedules for charge/discharge • Remote control and parameter adjustments • Alert notifications (SMS, email, push notifications) • Multi-user access with role-based permissions Energy Management System (EMS) Integration Connects with third-party EMS platforms for: • Building Management System (BMS) integration • SCADA system connectivity • Cloud-based energy optimization platforms • Demand response programs

Commercial & Industrial Energy Storage

Why Choose EnerTech Bidirectional PCS?

35+ Years of Power Electronics Mastery

Since 1989, EnerTech has been pioneering power conversion technologies in India. Our journey from UPS systems to solar inverters to advanced BESS solutions means our Bidirectional PCS benefits from decades of real-world experience. We understand Indian power conditions—the voltage fluctuations, frequency variations, and grid instabilities—and engineer our products accordingly.

600+ MW Installed Capacity Globally

With over 35,000 installations across 20+ countries representing 600+ MW of deployed power, EnerTech’s technology is proven at scale. Our PCS systems operate successfully in diverse conditions—from Himalayan cold to desert heat, from stable European grids to challenging African power networks.

Made in India for Indian Conditions

Designed for Real-World Challenges:

Modular Design for Future-Proof Scalability

Start small and grow as needed. Our 50kW modular architecture means:

Why Choose EnerTech Bidirectional PCS?

Made in India for Indian Conditions

20+ Service Centers Across India:

Dedicated BESS Support Team:

Certification & Compliance

Technical Deep Dive

Two-Stage Conversion Topology Single-Stage Conversion Option For utility-scale applications (500kW+), direct DC-AC conversion with high-voltage batteries minimizes losses.

Power Conversion Architecture

DC-DC Stage: Buck-boost converter maintains optimal battery voltage across wide SOC range DC-AC Stage: Three-level inverter with advanced SPWM for superior power quality

Integration & Installation

Verified Battery Partners: EnerTech PCS is tested and certified compatible with leading battery manufacturers including IPower, Tata Chemicals, Exide, BYD, CATL, LG Energy Solution, and Samsung SDI.

Lithium-Ion Technologies
Communication & Control
Standard Protocols
Cloud Platforms

Warranty & Support

Comprehensive Coverage

24/7 Technical Support

Standard Warranty: 5 Years
Extended Warranty: Up to 10 Years
Multi-Channel Support:
Response Times:

Successful Installation of Solar Online UPS

Delivering success through 35,000+ satisfied customers over the past 35+ years with our impeccable Battery Energy Storage System Installation.

Over 14,000 Successful Installations Across India

Trusted by industries, businesses, and institutions for reliable solar and energy storage solutions. Proven performance backed by decades of engineering excellence and customer confidence.

Enertech

Frequently Asked Questions

A: A regular inverter only converts DC to AC (one-way). A bidirectional PCS converts both ways—DC to AC (discharging) and AC to DC (charging). It also includes sophisticated battery management, grid synchronization, and energy optimization features.

A: Typical installation timeline is 4-6 weeks from order placement to commissioning, including permits, equipment delivery, installation, and testing.

A: Yes! Our modular 50kW architecture allows easy capacity expansion. Simply add more modules as your needs grow.

A: Minimal. Monthly visual inspections, quarterly cleaning (if dusty environment), and annual professional servicing. Our IoT monitoring alerts you proactively to any issues.

A: Yes, we partner with multiple financial institutions offering equipment financing, energy-as-a-service, and OPEX models for BESS projects.

A: Through our mobile app and web portal, you can view real-time power flows, energy metrics, battery status, savings calculations, and historical data from anywhere.

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